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<?php class MyIterator implements Iterator { private $var = array(); public function __construct($array) { if (is_array($array)) { $this->var = $array; } } public function rewind() { echo "rewinding\n"; reset($this->var); } public function current() { $var = current($this->var); echo "current: $var\n"; return $var; } public function key() { $var = key($this->var); echo "key: $var\n"; return $var; } public function next() { $var = next($this->var); echo "next: $var\n"; return $var; } /*public function valid() { $key = key($this->var); $var = ($key !== NULL && $key !== FALSE); echo "valid: $var\n"; return $var; }*/ } $values = array(1,2,3); $it = new MyIterator($values); class MyCollection implements IteratorAggregate { private $items = array(); private $count = 0; // Required definition of interface IteratorAggregate public function getIterator() { return new MyIterator($this->items); } public function add($value) { $this->items[$this->count++] = $value; } } $coll = new MyCollection(); $coll->add('value 1'); $coll->add('value 2'); $coll->add('value 3'); foreach ($coll as $key => $val) { echo "key/value: [$key -> $val]\n\n"; } ?>
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FjDin on line 19 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FjDin on line 33 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FjDin on line 26 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/FjDin on line 13 Fatal error: Class MyIterator contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Iterator::valid) in /in/FjDin on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Fatal error: Class MyIterator contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Iterator::valid) in /in/FjDin on line 2
Process exited with code 255.
Output for 5.3.28 - 5.3.29, 5.4.20 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Class MyIterator contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Iterator::valid) in /in/FjDin on line 48
Process exited with code 255.
Output for 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Fatal error: Class MyIterator contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Iterator::valid) in /in/HqJZm on line 48
Process exited with code 255.
Output for 5.0.0 - 5.0.4
Fatal error: Class MyIterator contains 1 abstract methods and must therefore be declared abstract (Iterator::valid) in /in/HqJZm on line 48
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/HqJZm on line 2
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/HqJZm on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/HqJZm on line 2
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/FjDin on line 2
Process exited with code 255.
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